Patents for C25C 1 - Electrolytic production, recovery or refining of metals by electrolysis of solutions (5,617)
02/1979
02/13/1979US4139431 Electrolytic, reducing current, density in stages
02/13/1979US4139430 Conductive projections on nonconductor
02/13/1979US4139429 Electrolytic cell
02/08/1979WO1979000059A1 Method for eliminating solution-level attack on cathodes during electrolysis
02/06/1979CA1048176A1 Process for purifying aqueous solutions, of metal ions precipitating as arsenides, antimonides, tellurides, selenides, and tin and mercury alloys
01/1979
01/30/1979US4137290 Ion absorbing, reversal of fluid flow
01/23/1979US4135997 Electrolytic production of metallic lead
01/23/1979CA1046979A1 Decreasing the metallic content of liquids by an electrochemical technique
01/23/1979CA1046977A2 Naphthalene monocarboxaldehyde brightening agents for electrolytically plating tin
01/23/1979CA1046799A1 Electrowinning of zinc using aluminum alloy
01/16/1979US4134806 Metal anodes with reduced anodic surface and high current density and their use in electrowinning processes with low cathodic current density
01/16/1979CA1046287A1 Atmospheric leaching of matte containing iron
01/09/1979CA1045825A1 Process for the destruction of developed and undeveloped photosensitive film and the recovery of products therefrom
01/02/1979US4132623 Device for regenerating zinc
01/02/1979CA1045579A1 Process for electrowinning of copper values from solid forms thereof
12/1978
12/26/1978US4130927 Process and an apparatus for the continuous mechanical fabrication of starting sheets for the electrolytic refining of metals, especially copper
12/19/1978US4130627 Process for recovering mineral values from fly ash
12/19/1978US4130625 Recovery and purification of iridium
12/19/1978CA1044825A1 Treatment of solutions containing impure metals
12/19/1978CA1044641A1 Processes and installations for the regeneration of spent pickling solutions
12/19/1978CA1044638A1 Electrolysis process and apparatus
12/19/1978CA1044635A1 Palladium electroplating bath, process and preparation
12/19/1978CA1044471A1 Method and apparatus for recovery of heavy metal ions from dilute aqueous solution
12/12/1978US4129492 Electrolytic cell
12/12/1978CA1044176A1 Method for electrochemically winning or refining copper
12/05/1978US4128464 Process for regenerating bleaching-fixing solution
12/05/1978US4128462 Polyvinylbenzyltrimethyl-ammonium chloride
12/05/1978CA1043732A1 Electrochemical cell
11/1978
11/28/1978US4127466 Photoelectrochemical metal plating and purification system
11/28/1978US4127458 Recovering platinum group metal as a stable complex
11/14/1978CA1042574A1 Process for the adsorptive removal of arsenic antimony and/or bismuth from an aqueous solution
11/07/1978US4124461 Halogenation of lead ore, conversion to lead carbonate and then lead fluosilicate, electrowinning
11/07/1978US4124460 Electrowinning of copper in presence of high concentration of iron
11/07/1978CA1041944A1 Non-contaminating anode suitable for electrowinning applications
10/1978
10/24/1978CA1041037A1 Process for the manufacture of electrolytic copper
10/10/1978CA1040133A1 Electrolytically refining silver with complexing of copper ions
09/1978
09/26/1978CA1039234A1 Process for the production of high-purity metals from nickeliferous mattes
09/26/1978CA1039065A1 Copper cementation
09/26/1978CA1039064A1 Production of lead and silver from their sulfides
09/19/1978US4115222 Method for electrolytic winning of lead
09/19/1978US4115220 Process for the preparation of high purity antimony
09/12/1978US4113848 By reduction of cupric salts or oxidation of copper or copper sulfide
09/12/1978US4113588 From pickling metallic materials
09/05/1978US4111766 Process for the recovery of silver from fixing solutions
09/05/1978US4111688 Method for separating gold from acid aqueous solution
09/05/1978CA1037897A1 Electrochemical refining of metals
08/1978
08/29/1978US4110176 Electrodeposition of copper
08/29/1978CA1037416A1 Electrowinning with an anode having a multicomponent coating
08/22/1978US4108753 Electrolytic cells
08/22/1978US4108740 Containing sulfur and manganese
08/15/1978US4107009 Recovery of copper from ores and concentrates
08/15/1978US4107007 Process for the recovery of lead from scrapped lead batteries
08/15/1978CA1036536A1 Electrodeposition of thick nickel deposits on permanent cathode blanks
08/08/1978US4105532 Improvements in or relating to the electrowinning of metals
08/08/1978US4105527 Electric system for electric extraction of non-ferrous metals from their solutions
08/01/1978US4104132 Method for eliminating solution-level attack on cathodes during electrolysis
07/1978
07/25/1978US4102754 Ore treatment electrolytic cell
07/18/1978US4101389 Method of manufacturing amorphous alloy
07/11/1978US4100043 Atmospheric leach ion-exchange process for treating iron-containing nickel-copper matte
07/11/1978US4100042 Process for electrowinning metals from a metal-bearing solids slurry
07/04/1978US4098668 Electrolyte metal extraction
07/04/1978US4098658 Removing sulfuric acid, immersing in fluoborate electrolyte to dissolve lead from electrodes
06/1978
06/27/1978US4097357 From an alkaline zincate solution
06/27/1978US4097354 Continuous process for electrolytic refining and electrowinning of elements and compounds
06/27/1978US4097347 Electrolytic recovery of metals
06/20/1978US4096053 Slurry electrowinning apparatus
06/20/1978US4096045 Pbcl2, crystallization
06/13/1978US4094754 Nickel, copper, iron, sulfur
06/13/1978US4094753 Recovery of gallium from gallium compounds
06/06/1978US4093532 Recovery of silver from photographic film
05/1978
05/23/1978US4090935 Electrolytic refining
05/23/1978US4090927 Process for electro-depositing a metal on conducting granules
05/16/1978US4089760 Method for regenerating waste developers used for processing silver halide photographic materials and method for storing developers
05/02/1978US4087340 Production of metallic lead
05/02/1978US4087339 Electrowinning of sulfur-containing nickel
05/02/1978US4087338 Organic acids and salts used as buffers
04/1978
04/18/1978US4085017 Recovery of copper and nickel from alloys
04/11/1978US4083759 Method for reducing sludge formation in the continuous production of iron by electrolysis of ferrous electrolyte
04/11/1978US4083758 Process for regenerating and for recovering metallic copper from chloride-containing etching solutions
04/04/1978US4082641 Simultaneous production of multiplicity of metal electrodeposits by plating from base metal electrolyte
03/1978
03/28/1978US4081506 Drying, grinding, roasting with sulfur, leaching
03/14/1978US4078979 Nickel electrowinning process
02/1978
02/28/1978US4076605 Dichromate leach of copper anode slimes
02/21/1978US4075069 Processes for preventing the generation of a mist of electrolyte and for recovering generated gases in electrowinning metal recovery, and electrodes for use in said processes
02/14/1978US4073709 Electrolytic recovery of nickel and zinc
02/14/1978US4073705 Electrolysis, formation of silver sulfide
02/14/1978US4073702 Electrochemical cells
02/07/1978US4072586 Manganese dioxide electrodes
01/1978
01/31/1978US4071526 Method for the preparation of additives in organo-aluminum electrolyte media
01/31/1978US4071422 Sulfuric acid, precipitation of zinc ammonium sulfate
01/31/1978US4071421 And manganese dioxide; leaching, electrolysis
01/24/1978US4070260 Process of sulfuric acid leaching silicated zinc ores
01/10/1978US4067952 Leaching of copper-nickel concentrates
01/10/1978US4067802 Mono- or dialkyl phosphoric acid, metal chelation collector
01/10/1978US4067789 Oxidation to manganese dioxide, precipitation
01/03/1978US4066520 Slurry electrowinning process
12/1977
12/27/1977US4065375 Apparatus for providing flow of electrolyte through electrolytic cells
12/20/1977US4064033 Electrolytic cell for electrolytically preparing a metal in pulverulent form
12/20/1977US4064022 Method of recovering metals from sludges
12/13/1977US4062744 Extraction of copper from sulfide ores
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